Read the following article and answer the question by choosing from the options.

Or , in the case of TV on the Radio , they played to a rapt audience which included a gaggle of boner - popping A&R dudes , whose presence added a strangely compelling uneasiness to the band 's increasingly awesome presence . [ ... ] That is not to say some of the main - stagers were not up to snuff . Yeah Yeah Yeahs , Kanye West , and Massive Attack all performed predictably entertaining if not overwhelming sets . The exception to the headliner rule , and probably to anything said above , was Daft Punk 's mindblowing appearance .

What may happen before Kanye West performs on stage ?
Available options: I. Other bands may arrive to perform II. Many fans may leave the concert III. Many fans may begin to cheer . IV. Other bands will practice...A:
I.